Medical Definition of analytic. 1  1: of or relating to analysis; especially : separating something into component parts or constituent elements. 2  2: psychoanalytic.
Umbilical arterial (UA) Doppler assessment is used in surveillance of fetal well-being in the third trimester of pregnancy. Abnormal umbilical artery Doppler is a marker of uteroplacental insufficiency and consequent intrauterine growth restriction (IUGR) or suspected pre-eclampsia.
Fetal blood is returned from the placenta to the fetus by the umbilical vein. This vein enters the fetal abdomen at the umbilicus and passes cephalad to the posteroinferior surface of the liver as the sinus venosus where it drains into the left portal vein (Fig. 1).After birth, the blood in the umbilical vein clots.Between the second and fifth postnatal days, the umbilical vein is usually completely occluded. After obliteration over the next several months, the umbilical vein becomes the ligamentum teres hepatis, which usually measures between 10 and 20 cm (Fig. 2).BJECTIVE. The objective of our study was to describe the appearance of the remnants of the fetal circulation in adults on MDCT. CONCLUSION. The use of MDCT allows frequent visualization of the remnants of the umbilical vein, ductus venosus, foramen ovale, ductus arteriosus, and umbilical arteries.